Data on historical diphtheria cases in the United States, compiled from a selection of sources from the US CDC.

Sources for each year are as follows:

@owid.diphtheria_cases.owid_diphtheria_cases_1

CREATE TABLE owid_diphtheria_cases_1 (
  "country" VARCHAR,
  "year" INTEGER,
  "cases" INTEGER,
  "source" VARCHAR
);

@owid.diphtheria_cases.owid_diphtheria_cases_2

CREATE TABLE owid_diphtheria_cases_2 (
  "country" VARCHAR,
  "year" INTEGER,
  "cases" INTEGER,
  "case_rate" FLOAT
);

@owid.diphtheria_cases.owid_diphtheria_cases_3

CREATE TABLE owid_diphtheria_cases_3 (
  "country" VARCHAR,
  "year" INTEGER,
  "cases" INTEGER,
  "source" VARCHAR
);